Call For Best Price 1-888-484-0864

Maytronics Dolphin TT Drive Pulley | 3883645

Maytronics SKU: 3883645

Maytronics Dolphin TT Drive Pulley | 3883645

Maytronics SKU: 3883645
  • In stock, ready to ship
  • Inventory on the way
$18.99
Instant Savings: $6
/
🚚 Shipping notice loading...
Questions about returns? View our return policy.
Free US Shipping - Shipping Policy

Maytronics 3883645 Drive Pulley TT (Flat Shaft) for Dolphin Robotic Pool Cleaners | Genuine Replacement

The Maytronics 3883645 is a genuine Dolphin replacement drive pulley, commonly listed as Drive Pulley TT (also described by some sellers as a drive pulley bearing / TT flat shaft pulley). It is used in the cleaner’s drive system to support smooth pulley rotation and proper track/drive movement on compatible Maytronics Dolphin robotic pool cleaners.

Key Features

  • Part number: 3883645
  • Brand: Maytronics (Dolphin genuine part)
  • Product type: Drive pulley / TT flat shaft pulley (seller terminology may vary)
  • Common description: Drive Pulley TT / Pulley for Flat Shaft TT
  • OEM replacement part for compatible Dolphin robotic pool cleaners
  • Helps restore proper drive motion and smoother operation

What This Part Does

  • Supports the drive system by providing proper pulley rotation in compatible cleaners
  • Helps restore movement and traction performance when the original pulley is worn or damaged
  • Can reduce drivetrain strain caused by seized, cracked, or worn pulley components
  • Maintains OEM fit and function when matched to the correct cleaner model/version

Common Compatibility Notes (Verify Before Ordering)

  • Used on many Maytronics Dolphin robotic pool cleaner models (compatibility varies by model and production version)
  • Retailer listings commonly reference models/families such as Nautilus / Nautilus Plus, Triton / Triton Plus, M200 / M400, C3/C4/C5, Discovery, Saturn, and other Dolphin variants
  • Some listings also reference compatibility with certain branded equivalents such as Pentair Prowler 820 / 830 (version dependent)
  • Always verify your exact cleaner model and existing part number before ordering

Important Notes

  • Seller descriptions may vary between drive pulley, drive pulley bearing, and TT flat shaft pulley for the same part number.
  • This item is commonly sold as a single replacement part; verify quantity needed for your repair.
  • Inspect related drive components (tracks, guide wheels, pulley gears, bearings) during replacement to prevent repeat repairs.

Installation Notes

  • Disconnect the cleaner from the power supply before servicing.
  • Open the drive/side compartment per your cleaner’s service procedure.
  • Remove the worn pulley and inspect the shaft, guides, and tracks for wear or binding.
  • Install the replacement pulley in the correct orientation and confirm smooth rotation.
  • Reassemble and test cleaner movement in the pool after installation.

Related Products (Aqua Pool Supply)

Maintenance Tips

  • Rinse the cleaner after each use to reduce debris and chemical buildup in the drive area.
  • Inspect tracks, guide wheels, and pulleys regularly for cracking, wear, or binding.
  • Remove hair/string debris from moving parts to reduce drivetrain strain.
  • Replace worn drive parts early to help maintain traction and prevent additional component wear.
Questions about returns? View our return policy.

Hours Of Operation:

Monday - Friday: 7:00 am to 5:00 pm Phoenix Time

Saturday: 8:00 am to 2:00 pm

Sunday: Closed

  • We do not ship on Saturday or Sunday.
  • Orders totaling more than $300 will require signature confirmation upon delivery.
  • We process and prepare orders for shipment within 1 business day. Please note that many other pool supply retailers require 3–5 days of handling time before shipping.
  • Orders placed after 1:00 pm Phoenix Time may not be eligible for same-day shipment.
  • Expedited shipping options are available at checkout.

Return Policy:

  • Products that are received damaged will receive a refund in store credit.
  • Most products are eligible for return within 30 days of receipt, except where noted below.
  • To initiate a return, please complete an RMA form prior to sending your item back.
  • Original shipping costs are non-refundable and will be deducted from the return credit.
  • Items returned missing accessories or original packaging, or that are not in the same condition as received, may be subject to a restocking fee of up to 100% depending on the condition of the item upon return.
  • Some returns will be charged an automatic 15% restocking fee.
  • We are unable to issue refunds for items that have been damaged or rendered inoperable due to installer error.
  • Please complete the return form to receive your RMA number and return shipping label.
  • Chemical products are not eligible for return under any circumstances.
  • The Pentair Colorsync 618031 is not eligible for return.
  • Pool cleaners are not eligible for return.
  • Opened seals and o-rings are not eligible for return.
  • Capacitors are not eligible for return.
  • Plastic popup tools are not eligible for return.
  • Automation components and circuit boards are not eligible for return.
  • If a light is returned due to a reported malfunction and is found to be fully operational upon testing, return shipping costs and a restocking fee will be deducted from the refund.
  • Orders refused at the time of delivery will be subject to the original shipping costs being deducted from the refund.
Related Products